… is an associate professor of science education at Northern Arizona University in Flagstaff, Arizona. He received his doctorate from Oregon State University. While a middle school science teacher, he worked in the summer as the education coordinator of the Cheetah Conservation Fund in Namibia. That experience led to work with Earth Expeditions with which he has facilitated field courses in Namibia, Trinidad and Tobago, and, most recently, Borneo. His research focuses on providing science teachers the understandings and tools to engage students in the practices of science.